EP3148099A1 - Fotoelektrisches empfangs- und übertragungsverfahren und vorrichtung sowie fotoelektrisches empfangs-/sendeverfahren, modul und vorrichtung - Google Patents

Fotoelektrisches empfangs- und übertragungsverfahren und vorrichtung sowie fotoelektrisches empfangs-/sendeverfahren, modul und vorrichtung Download PDF

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Publication number
EP3148099A1
EP3148099A1 EP14895101.5A EP14895101A EP3148099A1 EP 3148099 A1 EP3148099 A1 EP 3148099A1 EP 14895101 A EP14895101 A EP 14895101A EP 3148099 A1 EP3148099 A1 EP 3148099A1
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EP
European Patent Office
Prior art keywords
optical
multipath
electrical
path
signals
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14895101.5A
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English (en)
French (fr)
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EP3148099A4 (de
Inventor
Yongjia YIN
Mingsheng Li
Liquan Yuan
Songlin Zhu
Zhuang MA
Yong Guo
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ZTE Corp
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ZTE Corp
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Publication of EP3148099A4 publication Critical patent/EP3148099A4/de
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0256—Optical medium access at the optical channel layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0066—Provisions for optical burst or packet networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0071—Provisions for the electrical-optical layer interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0015—Construction using splitting combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0088—Signalling aspects

Definitions

  • the present invention relates to the technical field of optical communications, and in particular relates to an optical-electrical receiving and transmitting method and apparatus, as well as an optical-electrical transceiving method, module and device.
  • the present invention provides an optical-electrical receiving and transmitting method and apparatus, as well as an optical-electrical transceiving method, module and device, so as to solve at least the problems in an optical-electrical transceiving system of related technologies that physical interfaces are not simplified and are hard to be plugged and unplugged.
  • an optical-electrical receiving method including:
  • a manner of splitting the received optical signal into multipath optical signals includes:
  • the step of processing the multipath optical signals into multipath parallel electrical signals includes: processing the multipath optical signals into electrical signals of multipath parallel data frame structures, the multipath parallel data frame structures include reception frame headers and data of reception paths.
  • the step of converting the multipath parallel electrical signals into a single-path serial electrical signal includes:
  • the frame headers or the data of reception paths of the data frame structures further include path operating information; the path operating information includes at least one of path operating mode information, path signal modulation format information, path data transmission rate information, path operating wavelength information and operating path quantity information.
  • an optical-electrical receiving module including an optical splitting processing unit, an optical-electrical processing unit and a parallel-serial conversion unit.
  • the optical splitting processing unit is configured to split an optical signal transmitted from an optical interface into multipath optical signals, and transmit the multipath optical signals to the optical-electrical processing unit.
  • the optical-electrical processing unit is configured to process the received multipath optical signals into multipath parallel electrical signals, and transmit the multipath parallel electrical signals to the parallel-serial conversion unit.
  • the parallel-serial conversion unit is configured to convert the received multipath parallel electrical signals into a single-path serial electrical signal, and transmit the single-path serial electrical signal to an electrical interface.
  • the optical splitting processing unit is further configured to split the received optical signal into multipath optical signals according to wavelength and/or distributed power of the received optical signal.
  • an electrical-optical transmitting method including:
  • the single-path serial electrical signal is of a data frame structure
  • the data frame structure includes a serial transmission frame header and data of at least one of the transmission paths.
  • a process of converting the single-path serial electrical signal into multipath parallel electrical signals includes:
  • the frame headers or the data of transmission paths of the data frame structures further includes path operating information; the path operating information includes at least one of the path operating mode information, the path signal modulation format information, the path data transmission rate information, the path operating wavelength information and the operating path quantity information.
  • an electrical-optical transmitting module including a serial-parallel conversion unit, an electrical-optical processing unit and an optical combining processing unit.
  • the serial-parallel conversion unit is configured to convert the single-path serial electrical signal transmitted from the electrical interface, which is to be transmitted, into multipath parallel electrical signals, and transmit the multipath parallel electrical signals to the electrical-optical processing unit.
  • the electrical-optical processing unit is configured to process the received multipath parallel electrical signals into multipath optical signals, and transmit the multipath optical signals to the optical combining processing unit.
  • the optical combining processing unit is configured to combine the received multipath optical signals into a single beam of optical signals, and transmit the beam of optical signals to the optical interface.
  • the optical combining processing unit is further configured to combine the multipath optical signals into a beam of optical signals according to wavelength and/or distributed power of the multipath optical signals.
  • the present application provides a multipath optical-electrical transceiving method, including:
  • the present application provides a multipath optical-electrical transceiving module, including: an optical path splitting-combining processing unit, an optical-electrical path processing unit and a serial-parallel conversion unit, in a reception direction, the optical path splitting-combining processing unit is configured to split an optical signal received from an optical interface into multipath optical signals, and transmit the multipath optical signals to the optical-electrical path processing unit; the optical-electrical path processing unit is configured to process the received multipath optical signals into multipath parallel electrical signals, and transmit the multipath parallel electrical signals to the serial-parallel conversion unit; the serial-parallel conversion unit is configured to convert the multipath parallel electrical signals into a single-path serial electrical signal, and transmit the single-path serial electrical signal to an electrical interface; in a transmission direction, the serial-parallel conversion unit is configured to convert the single-path serial electrical signal received from the electrical interface, which is to be transmitted, into multipath parallel electrical signals, and transmit the multipath parallel electrical signals to the optical-electrical path processing unit; the optical-
  • the optical path splitting-combining processing unit splits the optical signal received from the optical interface into multipath optical signals according to wavelength and/or distributed power of the optical signal; in the transmission direction, the optical path splitting-combining processing unit combines the multipath optical signals into a beam of optical signals according to the wavelength and/or distributed power of the multipath optical signals.
  • the optical-electrical path processing unit is further configured to process the multipath optical signals into electrical signals of multipath parallel data frame structures, wherein the multipath parallel data frame structures include reception frame headers and data of reception paths;
  • the serial-parallel conversion unit is further configured to acquire data of multipath parallel reception paths according to the reception frame headers in the multipath parallel data frame structures; and process the acquired data of the multipath parallel reception paths into a single-path serial data frame structure, wherein the single-path serial data frame structure includes a serial reception frame header and data of at least one reception path;
  • the single-path serial electrical signal is of a data frame structure, and the data frame structure includes a serial transmission frame header and data of at least one transmission path;
  • the serial-parallel conversion unit is configured to:
  • the frame headers or the data of reception paths of the data frame structures further includes path operating information; the path operating information includes at least one of path operating mode information, path signal modulation format information, path data transmission rate information, path operating wavelength information and operating path quantity information; and in the transmission direction, the frame headers or data of transmission paths of the data frame structures further includes path operating information; the path operating information includes at least one of path operating mode information, path signal modulation format information, path data transmission rate information, path operating wavelength information and operating path quantity information.
  • an optical-electrical transceiving device including:
  • a multipath processing manner is adopted in the present invention.
  • a received optical signal is split into multipath optical signals, the multipath optical signals are processed into multipath parallel electrical signals, and finally the multipath parallel electrical signals are converted into a single-path serial electrical signal and the single-path serial electrical signal is transmitted to an electrical interface.
  • a process of splitting the received optical signal into multipath optical signals includes: splitting the received optical signal into multipath optical signals according to wavelength and/or distributed power of the optical signal.
  • the single-path of serial electrical signal to be transmitted is converted into multipath parallel electrical signals, then the converted multipath parallel electrical signals are processed into multipath optical signals, and finally the multipath optical signals are combined into an optical signal and the optical signal is transmitted to an optical interface.
  • the problems in the existing art that number of physical interfaces of an optical network system is large and the interfaces are hard to be plugged and unplugged due to a stacking technology when capacity of the optical network is large, are solved.
  • the problems in an optical-electrical transceiving system that the physical interfaces are not simplified and are hard to be plugged and unplugged, are solved.
  • the used terms are only used for describing specific embodiments, but not limiting the present disclosure.
  • the used singular forms such as “one”, “one of” and “the” further include plural forms, unless clearly indicated in the context.
  • the used terms such as “one”, “one of” etc. do not represent limitation to number, but existence of at least one of the referenced items.
  • the term “include” used in the description represents having specific characteristics, steps and operations, rather than excluding having or adding one or more other characteristics, steps, operations and/or combinations thereof.
  • Fig. 1 shows an optical-electrical receiving method provided by the present embodiment. The method includes the following steps:
  • a manner of splitting the received optical signal into multipath optical signals includes: splitting the received optical signal into multipath optical signals according to wavelength and/or distributed power of the optical signal.
  • the optical signal is split preferably according to but not limited to the wavelength and/or distributed power of the optical signal, and may be further split according to attributes such as intensity of the optical signal and the like.
  • optical signals with same wavelength can be split into the same path, or optical signals distributed with same power are split into the same path, and optical signals with same wavelength and distributed with same power can be further split into the same path. Specific splitting is set according to user's demands, and unnecessary details are omitted herein.
  • a process of processing the multipath optical signals into multipath parallel electrical signals includes: processing the multipath optical signals into electrical signals of multipath parallel data frame structures (described as multipath parallel data frame structures hereinafter).
  • the data frame structures include reception frame headers and data of reception paths.
  • the process of converting the multipath parallel electrical signals into a single-path serial electrical signal includes: acquiring data of the reception paths according to the reception frame headers in the multipath parallel data frame structures; and processing the acquired data of the reception paths into a single-path electrical signals of serial data frame structure (described as single-path serial data frame structure hereinafter).
  • the single-path serial data frame structure includes a serial reception frame header and data of at least one reception path.
  • a specific process of converting the multipath parallel electrical signals into a single-path serial data frame structure preferably includes: data of the reception paths is acquired according to the frame headers in the multipath parallel data frame structures, and the acquired data of the reception paths is subjected to be serial sorted preferably according to the location of the data (a path sequence) or data contents, so as to form a serial data column. To be sure, the serial data column can be randomly formed. Meanwhile, a new serial data frame header is formed, the formed serial data column is served as a data part in the serial data frame structure and the new serial data frame header is added, so as to form a single-path serial data frame structure.
  • the data frame structure includes:
  • Fig. 3a and Fig. 3c in Fig. 3 illustrate a serial reception data frame structure and parallel reception data frame structure respectively provided in the present embodiment.
  • the multipath parallel data frame structure is included in Fig. 3c , and only one path of the data frame structure is selected to describe the data frame structure in Fig. 3c in the present embodiment.
  • a specific process of converting the parallel data frame structure in Fig. 3c into the serial data frame structure in Fig. 3a is performed according to a serial-parallel conversion technology of the data frame structures.
  • the data frame structure further includes path operating information having at least one of path operating mode information, path signal modulation format information, path data transmission rate information, path operating wavelength information and operating path quantity information.
  • contents of the path operating information are not limited to the information mentioned above, and can be flexibly adjusted.
  • a specific adjustment manner may be as follows: the path operating information can be adjusted according to a control command input by an external interface and also can be adjusted by setting an adjustment rule or command in the system. To be sure, the path operating information can be further adjusted in hardware form or software form.
  • the contents and specific adjustment manner of the path operating information are not strictly limited, and contents and specific adjustment manners of the path operating information which can be thought under revelation of the present application belong to the protection scope of the present application.
  • the path operating information is located at a frame header part in the data frame structure or a path data part of the electrical signal.
  • Fig. 4a and Fig. 4c in Fig. 4 and Fig. 5a and Fig. 5c in Fig. 5 show that the path operating information is written into the frame header part of the data frame structure.
  • the frame header part of the data frame structure further includes data synchronization information and related protocol information.
  • Fig. 5a and Fig. 5c in Fig. 5 show that the path operating information is written into the path data part of the data frame structure.
  • the optical signal transmitted from the optical interface can be processed in a multipath processing manner after being split, and the problem that the physical interfaces are not simplified due to a stacked data processing technology when capacity of the optical signal is large, is solved.
  • the present embodiment further provides an electrical-optical transmitting method.
  • the method includes the following steps:
  • the single-path serial electrical signal transmitted from the electrical interface, which is to be transmitted, is received, the electrical interface of the single-path serial electrical signal to be transmitted is preferably but not limited to be one.
  • the received single-path serial electrical signal to be transmitted is of a data frame structure (described as single-path serial data frame structure hereinafter) including a serial transmission frame header and data of at least one transmission path. Data of the transmission paths is acquired according to the serial transmission frame header in the single-path serial data frame structure, and is split into multipath parallel data frame structures for processing according to a path sequence of the transmission paths or data contents in the paths.
  • the received single-path serial data frame structure further includes, besides the frame header, three serial paths carried with data which are respectively sorted as 1, 2 and 3, the three serial paths carried with data are split into three parallel paths carried with data and a new frame header is added respectively, so as to form three-path parallel data frame structures.
  • Fig. 3b and Fig. 3d in order to further describe the data frame structure in the present embodiment, please refer to Fig. 3b and Fig. 3d in Fig. 3 .
  • a format of the single-path serial transmission data frame structure and a format of parallel transmission data frame structure are respectively provided in Fig. 3b and Fig. 3d .
  • multipath parallel transmission data frame structures are included in Fig. 3d .
  • only a single-path transmission data frame structure is selected to describe the data frame structure in Fig. 3d in the present embodiment.
  • the data frame structure further includes path operating information having at least one of path operating mode information, path signal modulation format information, path data transmission rate information, path operating wavelength information and operating path quantity information.
  • contents of the path operating information are not limited to the information mentioned above, and can be flexibly adjusted.
  • a specific adjustment manner may be as follows: the path operating information can be adjusted according to the control command input by the external interface and also can be adjusted by setting the adjustment rule or command in the system. Certainly, the path operating information can be further adjusted in hardware form or software form.
  • the contents and specific adjustment manner of the path operating information are not strictly limited, and contents and specific adjustment manners of the path operating information which can be thought under revelation of the present application belong to the protection scope of the present application.
  • the path operating information is located at a frame header part in the data frame structure or a path data part of the electrical signal.
  • Fig. 4b and Fig. 4d in Fig. 4 and Fig. 5b and Fig. 5d in Fig. 5 show that the path operating information is written into the frame header part of the data frame structure.
  • the frame header part of the data frame structure further includes data synchronization information and related protocol information.
  • Fig. 5b and Fig. 5d in Fig. 5 show that the path operating information is written into the path data part of the data frame structure.
  • step 202 through technologies such as electrical-optical conversion, the multipath parallel electrical signals are processed into multipath optical signals according to the path operating information carried in the data frame structure.
  • the multipath optical signals are combined into a single beam of optical signals, and the beam of optical signals are transmitted to the optical interface.
  • a manner of combining the converted multipath optical signals into optical signals preferably includes but not limited to that: the multipath optical signals are combined into a beam of optical signals to be transmitted according to wavelength and/or distributed power of the multipath optical signals, and the combined beam of optical signals are transmitted by virtue of the optical interface.
  • the present embodiment provides an optical-electrical signal receiving method and an electrical-optical signal transmitting method respectively.
  • the transmitted optical-electrical signal can be processed in a multipath processing manner after being split, and the problem that the physical interfaces are not simplified due to the stacked data processing technology when the capacity of the optical signal is large, is avoided.
  • Fig. 6 is a schematic configuration diagram of an optical-electrical receiving module provided by the present embodiment.
  • the optical-electrical receiving module includes: an optical splitting processing unit 601, an optical-electrical processing unit 602 and a parallel-serial conversion unit 603.
  • the optical splitting processing unit 601 is configured to split an optical signal transmitted from an optical interface into multipath optical signals and transmit the multipath optical signals to the optical-electrical processing unit.
  • the optical-electrical processing unit 602 is configured to process the received multipath optical signals into multipath parallel electrical signals and transmit the multipath parallel electrical signals to the parallel-serial conversion unit.
  • the parallel-serial conversion unit 603 is configured to convert the received multipath parallel electrical signals into a single-path serial electrical signal and transmit the single-path serial electrical signal to an electrical interface.
  • the optical interfaces and the electrical interfaces preferably include but not limited to one optical interface and one electrical interface.
  • the optical splitting processing unit 601 preferably but not limited to split the optical signal according to distributed power and/or wavelength of the optical signal (can further split the optical signal according to attributes such as intensity of the optical signal, etc.). Specifically, the optical splitting processing unit 601 splits the optical signal into multipath optical signals; and the multipath optical signals can be simultaneously processed.
  • the optical-electrical processing unit 602 includes an optical-electrical conversion function and is capable of processing the multipath optical signals into multipath parallel electrical signals, which are of data frame structures.
  • the path operating information is added in the data frame structures, and the path operating information includes at least one of the path operating mode information, the path signal modulation format information, the path data transmission rate information, the path operating wavelength information and the operating path quantity information.
  • contents of the path operating information are not limited to the information mentioned above, and can be flexibly adjusted.
  • the specific adjustment manner may be as follows: the path operating information can be adjusted according to the control command input by the external interface and also can be adjusted by setting the adjustment rule or command in the system. To be sure, the path operating information can be further adjusted in hardware form or software form.
  • the contents and specific adjustment manner of the path operating information are not strictly limited, and contents and specific adjustment manners of the path operating information which can be thought under revelation of the present application belong to the protection scope of the present application.
  • Fig. 7 is a schematic configuration diagram of an electrical-optical transmitting module provided by the present embodiment.
  • the electrical-optical transmitting module includes: a serial-parallel conversion unit 701, an electrical-optical processing unit 702 and an optical combining processing unit 703.
  • the serial-parallel conversion unit 701 is configured to receive a single-path serial electrical signal transmitted from the electrical interface, which is to be transmitted, and convert the single-path serial electrical signal into multipath parallel electrical signals.
  • the received single-path serial electrical signal to be transmitted is of a data frame structure (described as single-path serial data frame structure hereinafter) including a serial transmission frame header and data of at least one transmission path.
  • the serial-parallel conversion unit 701 splits the single-path serial data frame structure into multipath parallel data frame structures preferably according to the path sequence or data contents in the single-path serial data frame structure.
  • the manner of splitting the single-path serial data frame structure into the multipath parallel data frame structures is not limited to splitting according to the path sequence or the data contents, and the serial data frame structure can also be randomly split.
  • the electrical-optical processing unit 702 processes the multipath parallel data frame structures into multipath optical signals according to the path operating information carried in the data frame structures.
  • the manner of combining the converted multipath optical signals into optical signals preferably includes but not limited to that: the multipath optical signals are combined into a beam of optical signals to be transmitted according to wavelength and/or distributed power of the multipath optical signals, and the combined beam of optical signals are transmitted out by virtue of the optical interface.
  • Fig. 8 is a flow chart illustrating a multipath optical-electrical transceiving method provided by the present embodiment. The method includes: a reception direction and a transmission direction.
  • the method includes the following steps:
  • the method includes the following steps:
  • the optical signal is received in the above step 801 and the method of splitting the optical signal into multipath optical signals includes: splitting the received optical signal into multipath optical signals according to the wavelength and/or distributed power of the optical signal. To be sure, the optical signal can be split according to other attributes of the optical signal, such as the intensity of the optical signal.
  • the split multipath optical signals are processed in the above step 802.
  • the multipath optical signals are processed into multipath parallel electrical signals.
  • the multipath parallel electrical signals are of electrical signal data frame structures (described as multipath parallel data frame structures hereinafter), and the multipath parallel data frame structures include reception frame headers and data of the reception paths.
  • path operating information is added in the multipath parallel data frame structures, and the path operating information includes at least one of the path operating mode information, the path signal modulation format information, the path data transmission rate information, the path operating wavelength information and the operating path quantity information.
  • the contents of the path operating information are not limited to the information mentioned above, and can be flexibly adjusted.
  • the specific adjustment manner may be as follows: the path operating information can be adjusted according to the control command input by the external interface and also can be adjusted by setting the adjustment rule or command in the system. To be sure, the path operating information can be further adjusted in hardware form or software form.
  • the contents and specific adjustment manner of the path operating information are not strictly limited, and contents and specific adjustment manners of the path operating information which can be thought under revelation of the present application belong to the protection scope of the present application.
  • the process of converting the multipath parallel electrical signals into the single-path serial electrical signal and transmitting the single-path serial electrical signal to the electrical interface includes: data of all the reception paths is acquired according to the frame headers in the multipath parallel data frame structures, the acquired data of the reception paths is subjected to serial sorting preferably according to the location of the data (the path sequence) or data contents, so as to form a serial data column.
  • serial data column can be randomly formed.
  • the formed serial data column is served as a data part in the serial data frame structure. Meanwhile, a new serial data frame header is formed and added into the formed serial data column, so as to form the single-path serial data frame structure.
  • the single-path serial electrical signal to be transmitted is received, the single-path serial electrical signal is converted into multipath parallel electrical signals.
  • the received single-path serial electrical signal to be transmitted is of a data frame structure (described as single-path serial data frame structure hereinafter), and the single-path serial data frame structure includes a serial transmission frame header and data of at least one of the transmission paths.
  • the specific conversion format includes that: the single-path serial data frame structure is split into multipath parallel data frame structures for processing according to the sequence of the path data of the single-path serial data frame structure or the data contents preferably.
  • the manner of splitting the single-path serial data frame structure into the multipath parallel data frame structures is not limited to splitting according to the path sequence or the data contents.
  • the serial data frame structure can be further randomly split.
  • step 805 of the present embodiment through technologies such as electrical-optical conversion, the multipath parallel data frame structures are processed into multipath optical signals according to the path operating information carried in the data frame structures.
  • the manner of combining the converted multipath optical signals into optical signals preferably includes but not limited to: the multipath optical signals are combined into a beam of optical signals to be transmitted according to wavelength and/or distributed power of the multipath optical signals, and the combined beam of optical signals are transmitted by virtue of the optical interface.
  • the present embodiment provides a multipath optical-electrical transceiving module as shown in Fig. 9 .
  • the multipath optical-electrical transceiving module includes: an optical path splitting-combining processing unit 901, an optical-electrical path processing unit 902 and a serial-parallel conversion unit 903.
  • the optical path splitting-combining processing unit 901 has an optical power division multiplexing function and/or an optical wavelength division multiplexing function, that is, the optical path splitting-combining processing unit 901 can split the received optical signal according to the distributed power and/or wavelength of the optical signal.
  • the optical signal is split preferably, but not limited to according to the distributed power and/or wavelength of the optical signal only, and the optical signal can be further split according to attributes such as the intensity of the optical signal. Specific splitting is set by acquiring user demands according to system setting, and the details are omitted herein.
  • the optical path splitting-combining processing unit 901 splits the received optical signal into multipath optical signals according to the distributed power and/or wavelength of the optical signal, and transmits the multipath optical signals to the optical-electrical path processing unit 902.
  • the optical-electrical path processing unit 902 converts the received multipath optical signals into multipath parallel electrical signals, and transmits the multipath parallel electrical signals to the serial-parallel conversion unit 903.
  • the process of processing the multipath optical signals into the multipath parallel electrical signals by the optical-electrical path processing unit 902 includes: the multipath optical signals are processed into electrical signals of multipath parallel data frame structures (described as multipath parallel data frame structures hereinafter), and each data frame structure includes a reception frame header and data of reception path.
  • the serial-parallel conversion unit 903 converts the received multipath parallel electrical signals into a single-path serial electrical signal.
  • the process of converting the multipath parallel electrical signals into a single-path serial electrical signal includes: data of all the reception paths is acquired according to the reception frame headers in the multipath parallel data frame structures, the acquired data of the reception paths is subjected to serial sorting preferably according to the location of the data (the path sequence) or data contents, so as to form a serial data column; the formed serial data column is served as the data part in the serial data frame structure. Meanwhile, a new serial data frame header is formed and added into the formed serial data column, so as to form the single-path serial data frame structure.
  • the acquired data of the reception paths can be randomly used for serial data column formation.
  • the optical-electrical path processing unit 902 includes an electrical signals-optical signals conversion function, that is, after the multipath parallel electrical signals being received, the optical-electrical path processing unit 902 converts the received multipath parallel electrical signals into the multipath optical signals and transmits the multipath optical signals to the optical path splitting-combining processing unit 901.
  • the optical path splitting-combining processing unit 901 includes at least the optical power division multiplexing function and/or the optical wavelength division multiplexing function. Therefore, after the multipath optical signals being received, the multipath optical signals are combined into a beam of optical signals according to the distributed power and/or wavelengths of the received multipath optical signals. To be sure, in the present embodiment, the received multipath optical signals can also be combined into a beam of optical signals according to attributes of the multipath optical signals, such as the light intensity. In the present embodiment, manners of combining the multipath optical signals are not limited to the above manners listed in the present embodiment.
  • the optical-electrical path processing unit 902 includes at least one optical-electrical receiving path and at least one electrical-optical transmitting path.
  • the optical-electrical receiving paths are configured to convert the received optical signals into electrical signals and transmit the electrical signals to the serial-parallel conversion unit 903.
  • two-path parallel optical signals are converted into two-path parallel electrical signals respectively; and when there are a plurality of optical-electrical receiving paths, multipath optical signals are converted into multipath parallel electrical signals respectively.
  • the electrical-optical transmitting paths are configured to convert the received electrical signals into optical signals and transmit the optical signals to the optical path splitting-combining processing unit 901.
  • the quantity of the electrical-optical transmitting paths is preferably the same as that of the optical-electrical receiving paths.
  • the quantity of the electrical-optical transmitting paths may be different from that of the optical-electrical receiving paths.
  • the multipath optical signals can be preferably processed by virtue of a plurality of optical-electrical receiving paths
  • the multipath parallel electrical signals can be processed by virtue of one electrical-optical transmitting path.
  • the multipath parallel electrical signals are processed preferably by virtue of multipath parallel electrical-optical transmitting paths.
  • the specific path setting manner is not limited in the present embodiment, and manners of processing the optical-electrical signals in a multipath manner which are thought under revelation of the present application belong to the protection scope of the present application.
  • both of the single-path serial data frame structure and the multipath parallel data frame structure include the path operating information having at least one of the path operating mode information, the path signal modulation format information, the path data transmission rate information, the path operating wavelength information and the operating path quantity information.
  • the contents of the path operating information are not limited to the information mentioned above, and can be flexibly adjusted.
  • the specific adjustment manner may be as follows: the path operating information can be adjusted according to a control command provided by a manager linked with the external interface and also can be adjusted by setting a management module including the adjustment rule or command in the system. To be sure, the path operating information can be further adjusted in hardware form or in software form.
  • the contents and specific adjustment manner of the path operating information are not strictly limited, and the contents and adjustment manners of the path operating information which can be thought under revelation of the present application belong to the protection scope of the present application.
  • the path operating information in the data frame structure can be located at the frame header part of the data frame structure or the data part of the paths.
  • Fig. 10 is a schematic configuration diagram for performing data transmission with the multipath optical-electrical transceiving module provided by the present embodiment.
  • the schematic configuration diagram of the present embodiment preferably includes an optical interface, a multipath optical-electrical transceiving module and an electrical interface, where the multipath optical-electrical transceiving module includes the optical path splitting-combining processing unit 901, the optical-electrical path processing unit 902 and the serial-parallel conversion unit 903.
  • the optical-electrical path processing unit 902 further includes at least one optical-electrical receiving path and at least one electrical-optical transmitting path.
  • specific data transmission includes the following steps.
  • the optical-electrical path processing unit 902 includes at least one optical-electrical receiving path and at least one electrical-optical transmitting path, and an optical-electrical receiving path and an electrical-optical transmitting path form a small optical-electrical processing unit.
  • the plurality of optical-electrical receiving paths in the optical-electrical path processing unit 902 receive the distributed multipath optical signals and convert the received multipath optical signals into multipath parallel electrical signals, and the multipath parallel electrical signals are of multipath parallel data frame structures, and each data frame structure in the multipath parallel data frame structures includes a frame header and data of corresponding path; and the optical-electrical path processing unit 902 transmits the converted multipath parallel electrical signals to the serial-parallel conversion unit 903.
  • the serial-parallel conversion unit 903 has a serial-parallel conversion function and a parallel-serial conversion function.
  • the parallel-serial conversion function is mainly used in the reception direction of the present embodiment.
  • the serial-parallel conversion unit 903 converts the received multipath parallel electrical signals into a single-path serial electrical signal.
  • the electrical signals are processed into multipath optical signals by utilizing the photoelectrical conversion technology, and the optical signals are transmitted to the optical path splitting-combining processing unit 901 to be combined.
  • the optical path splitting-combining processing unit 901 preferably combines the received multipath optical signals into a beam of optical signals according to the distributed power and/or wavelengths of the multipath optical signals, and transmits the beam of optical signals to the optical interface.
  • the multipath optical-electrical transceiving module further includes a synchronization unit and a management unit.
  • the synchronization unit is configured to guarantee clock synchronization among units in the multipath optical-electrical transceiving module
  • the management unit is configured to manage operating modes of the units in the multipath optical-electrical transceiving module and is mainly further configured to manage the path operating information in the optical-electrical path processing unit 902, where the path operating information includes at least one of the path operating mode information, the path signal modulation format information, the path data transmission rate information, the path operating wavelength information and the operating path quantity information.
  • the synchronization unit and the management unit is inside the system of the multipath optical-electrical transceiving module, and realized by software or hardware; and can be further outside the system of the multipath optical-electrical transceiving module and be realized via an external interface.
  • the synchronization unit and the management unit can be located inside the system of the multipath optical-electrical transceiving module and realized by software.
  • the present embodiment provides a multipath optical-electrical transceiving modular device, which is an application of stacking the multipath optical-electrical transceiving modules.
  • the device includes: at least two multipath optical-electrical transceiving modules of embodiment IV and an optical path splitting-combining processor.
  • the optical path splitting-combining processor is configured to split the received optical signal into multipath optical signals according to the wavelength and/or distributed power of the optical signal, and distribute the multipath optical signals to the at least two multipath optical-electrical transceiving modules.
  • the multipath optical-electrical transceiving modules are configured to perform multipath splitting-combining processing on the received optical-electrical signals by adopting the method in embodiment I or embodiment III. Specifically, in the reception direction, the multipath optical-electrical transceiving modules are configured to perform multipath splitting processing on the received optical signals; and in the transmission direction, the multipath optical-electrical transceiving modules are configured to perform multipath combining processing on the received electrical signals.
  • the method and apparatus for optical-electrical receiving and optical-electrical transmitting, and the method, module and device for optical-electrical transceiving provided by embodiments of the present invention have the following beneficial effects: the received optical-electrical signals are processed by adopting the multipath processing technology, thus the problems in the existing art that the quantity of the physical interfaces of the optical network system is large and the interfaces are hard to be plugged and unplugged due to the stacking technology when the capacity of the optical network is large, are solved.

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EP14895101.5A 2014-06-17 2014-08-21 Fotoelektrisches empfangs- und übertragungsverfahren und vorrichtung sowie fotoelektrisches empfangs-/sendeverfahren, modul und vorrichtung Withdrawn EP3148099A4 (de)

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PCT/CN2014/084943 WO2015192467A1 (zh) 2014-06-17 2014-08-21 光电接收、发射方法、装置，光电收发方法、模块、设备

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WO2015192467A1 (zh) 2015-12-23

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